Born in Michigan (USA) to Polish immigrants, Mitchell is a software developer and political activist who lives in Chicago. Mitchell co-founded CAPES, the Chicago Area Participatory Economics Society, and has worked on experimental research on participatory planning by developing agent-based computer simulation software. He contributed to the book Democratic Economic Planning (Routledge, 2021).

Antti Jauhiainen is an activist, author, and primary school teacher. He is a co-founder of Parecon Finland, a think tank focused on a participatory economy and democracy. His articles on poverty, climate change, and the new economy have been published in the New York Times, Jacobin Magazine, and Helsingin Sanomat. He is the co-author of The Welfare State Strikes Back, which argues for the need for ambitious welfare states to kickstart the transformation to a sustainable, participatory economy.

Robin Hahnel is a radical economist and political activist. He is Professor Emeritus at American University in Washington, D.C. where he taught in the Economics Department from 1976 – 2008. He currently resides in Boston.

His work in economic theory is informed by the work of Thorstein Veblen, John Maynard Keynes, Karl Polanyi, Pierro Straffa, Joan Robinson, and Amartya Sen among others. He is best known as co-creator, along with Michael Albert, of a radical alternative to capitalism known as a Participatory Economy (or Parecon for short).

Politically he considers himself a proud product of the New Left and is sympathetic to libertarian socialism. He has been active in many social movements and organizations over forty years, beginning with the Harvard and MIT SDS chapters and the Boston area anti-Vietnam war movement in the 1960s.